384047885 has 16 divisors (see below), whose sum is σ = 498494640. Its totient is φ = 282355200.

The previous prime is 384047879. The next prime is 384047891. The reversal of 384047885 is 588740483.

It is an interprime number because it is at equal distance from previous prime (384047879) and next prime (384047891).

It can be written as a sum of positive squares in 8 ways, for example, as 5476 + 384042409 = 74^2 + 19597^2 .

It is a de Polignac number, because none of the positive numbers 2^k-384047885 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1985 + ... + 27785.

It is an arithmetic number, because the mean of its divisors is an integer number (31155915).

Almost surely, 2^384047885 is an apocalyptic number.

It is an amenable number.

384047885 is a deficient number, since it is larger than the sum of its proper divisors (114446755).

384047885 is a wasteful number, since it uses less digits than its factorization.

384047885 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 26048.

The product of its (nonzero) digits is 860160, while the sum is 47.

The square root of 384047885 is about 19597.1397147645. The cubic root of 384047885 is about 726.8784486617.

The spelling of 384047885 in words is "three hundred eighty-four million, forty-seven thousand, eight hundred eighty-five".